Camera optical lens

ABSTRACT

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens sequentially includes, from an object side to an image side: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a positive refractive power; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power. The camera optical lens satisfies following conditions: 1.00≤(v2+v4)/v3≤1.90; 9.00≤f3/f2≤15.00; and 8.00≤f4/f5≤30.00, where v2, v3 and v4 denote abbe numbers of the second, third and fourth lenses, respectively; and f2, f3, f4 and f5 denote focal lengths of the second, third, fourth and fifth lenses, respectively. The camera optical lens according to the present disclosure can achieve high optical performance while satisfying design requirements for ultra-thin, wide-angle lenses having large apertures.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and camera devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera optical lens is increasingly higher, but in general thephotosensitive devices of camera optical lens are nothing more thanCharge Coupled Devices (CCDs) or Complementary Metal-Oxide SemiconductorSensors (CMOS sensors). As the progress of the semiconductormanufacturing technology makes the pixel size of the photosensitivedevices become smaller, plus the current development trend of electronicproducts towards better functions and thinner and smaller dimensions,miniature camera optical lenses with good imaging quality have become amainstream in the market.

In order to obtain better imaging quality, the lens that istraditionally equipped in mobile phone cameras adopts a three-piece orfour-piece lens structure. Also, with the development of technology andthe increase of the diverse demands of users, and as the pixel area ofphotosensitive devices is becoming smaller and smaller and therequirement of the system on the imaging quality is becomingincreasingly higher, a five-piece or six-piece lens structure graduallyemerges in lens designs. Although the common six-piece lens has goodoptical performance, its refractive power, lens spacing and lens shapesettings still have some irrationality, such that the lens structurecannot achieve high optical performance while satisfying designrequirements for ultra-thin, wide-angle lenses having large apertures.

SUMMARY

In view of the problems, the present disclosure aims to provide a cameraoptical lens, which can achieve high optical performance whilesatisfying design requirements for ultra-thin, wide-angle lenses havinglarge apertures.

In an embodiment, the present disclosure provides a camera optical lens.The camera optical lens sequentially includes, from an object side to animage side: a first lens having a positive refractive power; a secondlens having a negative refractive power; a third lens having a negativerefractive power; a fourth lens having a positive refractive power; afifth lens having a positive refractive power; and a sixth lens having anegative refractive power. The camera optical lens satisfies followingconditions: 1.00≤(v2+v4)/v3≤1.90; 9.00≤f3/f2≤15.00; and8.00≤f4/f5≤30.00, where v2 denotes an abbe number of the second lens; v3denotes an abbe number of the third lens; v4 denotes an abbe number ofthe fourth lens; f2 denotes a focal length of the second lens; f3denotes a focal length of the third lens; f4 denotes a focal length ofthe fourth lens; and f5 denotes a focal length of the fifth lens.

The present disclosure has advantageous effects in that the cameraoptical lens according to the present disclosure has excellent opticalcharacteristics and is ultra-thin, wide-angle and has a large aperture,making it especially suitable for high-pixel camera optical lensassembly of mobile phones and WEB camera optical lenses formed by cameraelements such as CCD and CMOS.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present disclosure provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present disclosure. The camera optical lens 10 includes 6lenses. Specifically, the camera optical lens 10 sequentially includes,from an object side to an image side, an aperture S1, a first lens L1, asecond lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, anda sixth lens L6. An optical element such as a glass filter (GF) can bearranged between the sixth lens L6 and an image plane Si.

The first lens L1 has a positive refractive power, the second lens L2has a negative refractive power, the third lens L3 has a negativerefractive power, the fourth lens L4 has a positive refractive power,the fifth lens L5 has a positive refractive power, and the sixth lens L6has a negative refractive power.

The first lens L1 is made of a plastic material, the second lens L2 ismade of a plastic material, the third lens L3 is made of a plasticmaterial, the fourth lens L4 is made of a plastic material, the fifthlens L5 is made of a plastic material, and the sixth lens L6 is made ofa plastic material.

An abbe number of the second lens L2 is defined as v2, an abbe number ofthe third lens L3 is defined as v3, and an abbe number of the fourthlens L4 is defined as v4. The camera optical lens 10 should satisfy acondition of 1.00≤(v2+v4)/v3≤1.90, which specifies a ratio of a sum ofthe dispersion coefficients of the second lens L2 and the fourth lens L4to the dispersion coefficient of the third lens L3. When the conditionis satisfied, the dispersion of the camera optical lens can beeffectively corrected, the definition of the camera can be improved soas to capture an image closer to a true color of a subject, therebyimproving the imaging quality. As an example, 1.01≤(v2+v4)/v3≤1.89.

A focal length of the second lens L2 is defined as f2, and a focallength of the third lens L3 is defined as f3. The camera optical lens 10should satisfy a condition of 9.00≤f3/f2≤15.00, which specifies a ratioof the focal length f2 of the second lens L2 to the focal length f3 ofthe third lens L3. This can effectively reduce the sensitivity of thecamera optical lens 10 and further enhance the imaging quality. As anexample, 9.02≤f3/f2≤14.98.

A focal length of the fourth lens L4 is defined as f4, and a focallength of the fifth lens L5 is defined as f5. The camera optical lens 10should satisfy a condition of 8.00≤f4/f5≤30.00, which specifies a ratioof the focal length f4 of the fourth lens L4 to the focal length f5 ofthe fifth lens L5. This can effectively reduce the sensitivity of thecamera optical lens 10 and further enhance the imaging quality. As anexample, 8.03≤f4/f5≤29.98.

When the focal lengths and the abbe numbers of the lenses of the cameraoptical lens 10 according to the present disclosure satisfy the aboveconditions, the camera optical lens 10 can achieve high performance.

The first lens L1 includes an object side surface being convex in aparaxial region and an image side surface being concave in the paraxialregion.

A focal length of the camera optical lens 10 is defined as f, and afocal length of the first lens L1 is defined as f1. The camera opticallens 10 should satisfy a condition of 0.40≤f1/f≤1.31, which specifies aratio of the focal length f1 of the first lens L1 to the focal length fof the camera optical lens. When the condition is satisfied, the firstlens L1 can have an appropriate positive refractive power, therebyfacilitating reducing aberrations of the system while facilitatingdevelopment towards ultra-thin, wide-angle lenses. As an example,0.64≤f1/f≤1.04.

A curvature radius of the object side surface of the first lens L1 isdefined as R1, and a curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 shouldsatisfy a condition of −3.48≤(R1+R2)/(R1−R2)≤−1.09. This can reasonablycontrol a shape of the first lens L1, so that the first lens L1 caneffectively correct spherical aberrations of the system. As an example,−2.18≤(R1+R2)/(R1−R2)≤−1.37.

An on-axis thickness of the first lens L1 is defined as d1, and a totaloptical length from the object side surface of the first lens L1 to animage plane of the camera optical lens 10 along an optic axis is definedas TTL. The camera optical lens 10 should satisfy a condition of0.06≤d1/TTL≤0.22. This can facilitate achieving ultra-thin lenses. As anexample, −0.10≤d1/TTL≤0.18.

The second lens L2 includes an object side surface being convex in aparaxial region and an image side surface being concave in the paraxialregion.

The focal length of the camera optical lens 10 is f, and the focallength of the second lens L2 is f2. The camera optical lens 10 furthersatisfies a condition of −4.83≤f2/f≤−1.31. By controlling the negativerefractive power of the second lens L2 within the reasonable range,correction of aberrations of the optical system can be facilitated. Asan example, −3.02≤f2/f≤−1.64.

A curvature radius of the object side surface of the second lens L2 isdefined as R3, and a curvature radius of the image side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 shouldsatisfy a condition of 1.00≤(R3+R4)/(R3−R4)≤7.77, which specifies ashape of the second lens L2. This can facilitate correction of anon-axis aberration with development towards ultra-thin lenses. As anexample, 1.60≤(R3+R4)/(R3−R4)≤6.21.

An on-axis thickness of the second lens L2 is defined as d3, and thetotal optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. The camera optical lens 10 should satisfy a condition of0.02≤d3/TTL≤0.07. This can facilitate achieving ultra-thin lenses. As anexample, 0.03≤d3/TTL≤0.06.

The third lens L3 includes an object side surface being convex in aparaxial region and an image side surface being concave in the paraxialregion.

The focal length of the camera optical lens 10 is f, and the focallength of the third lens L3 is f2. The camera optical lens 10 furthersatisfies a condition of −65.41≤f3/f≤−14.57. The appropriatedistribution of the refractive power leads to better imaging quality anda lower sensitivity. As an example, −40.88≤f3/f≤−18.21.

A curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of the image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 shouldsatisfy a condition of 2.45≤(R5+R6)/(R5−R6)≤18.12. This can effectivelycontrol a shape of the third lens L3, thereby facilitating shaping ofthe third lens L3. When the condition is satisfied, the deflection oflight passing through the lens can be alleviated. As an example,3.93≤(R5+R6)/(R5−R6)≤14.50.

An on-axis thickness of the third lens L3 is defined as d5, and thetotal optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. The camera optical lens 10 should satisfy a condition of0.03≤d5/TTL≤0.10. This can facilitate achieving ultra-thin lenses. As anexample, 0.04≤d5/TTL≤0.08.

The fourth lens L4 includes an object side surface being concave in aparaxial region and an image side surface being convex in the paraxialregion.

The focal length of the camera optical lens 10 is f, and the focallength of the fourth lens L4 is f4. The camera optical lens 10 furthersatisfies a condition of 7.68≤f4/f≤127.28. The appropriate distributionof the refractive power leads to better imaging quality and a lowersensitivity. As an example, 12.29≤f4/f≤101.82.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 shouldsatisfy a condition of −25.76≤(R7+R8)/(R7−R8)≤196.39, which specifies ashape of the fourth lens L4. This can facilitate correction of anoff-axis aberration with development towards ultra-thin, wide-anglelenses. As an example, −16.10≤(R7+R8)/(R7−R8)≤157.11.

An on-axis thickness of the fourth lens L4 is defined as d7, and thetotal optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. The camera optical lens 10 should satisfy a condition of0.03≤d7/TTL≤0.19. This can facilitate achieving ultra-thin lenses. As anexample, 0.04≤d7/TTL≤0.16.

The fifth lens L5 includes an object side surface being convex in aparaxial region and an image side surface being concave in the paraxialregion.

The focal length of the camera optical lens 10 is f, and the focallength of the fifth lens L5 is f5. The camera optical lens 10 furthersatisfies a condition of 0.47≤f5/f≤4.25. This condition can effectivelymake a light angle of the camera optical lens 10 gentle and reduce thetolerance sensitivity. As an example, 0.76≤f5/f≤3.40.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of the image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 shouldsatisfy a condition of −6.13≤(R9+R10)/(R9−R10)≤2.83, which specifies ashape of the fifth lens L5. This can facilitate correction of anoff-axis aberration with development towards ultra-thin, wide-anglelenses. As an example, −3.83≤(R9+R10)/(R9−R10)≤2.27.

An on-axis thickness of the fifth lens L5 is defined as d9, and thetotal optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. The camera optical lens 10 should satisfy a condition of0.03≤d9/TTL≤0.17. This can facilitate achieving ultra-thin lenses. As anexample, 0.05≤d9/TTL≤0.14.

The sixth lens L6 includes an object side surface being convex in aparaxial region and an image side surface being concave in the paraxialregion.

The focal length of the camera optical lens 10 is f, and the focallength of the sixth lens L6 is f6. The camera optical lens 10 furthersatisfies a condition of −3.39≤f6/f≤−0.40. The appropriate distributionof the refractive power leads to better imaging quality and a lowersensitivity. As an example, −2.12≤f6/f≤−0.50.

A curvature radius of the object side surface of the sixth lens L6 isdefined as R11, and a curvature radius of the image side surface of thesixth lens L6 is defined as R12. The camera optical lens 10 shouldsatisfy a condition of 0.10≤(R11+R12)/(R11−R12)≤5.10, which specifies ashape of the sixth lens L6. This can facilitate correction of anoff-axis aberration with development towards ultra-thin lenses. As anexample, 0.16≤(R11+R12)/(R11−R12)≤4.08.

An on-axis thickness of the sixth lens L6 is defined as d11, and thetotal optical length from the object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. The camera optical lens 10 should satisfy a condition of0.04≤d11/TTL≤0.23. This can facilitate achieving ultra-thin lenses. Asan example, 0.07≤d11/TTL≤0.18.

In this embodiment, the focal length of the camera optical lens 10 isdefined as f, and a combined focal length of the first lens L1 and thesecond lens L2 as defined as f12. The camera optical lens 10 shouldsatisfy a condition of 0.57≤f12/f≤1.84. This can eliminate aberrationand distortion of the camera optical lens 10, suppress the back focallength of the camera optical lens 10, and maintain miniaturization ofthe camera lens system group. As an example, 0.91≤f12/f≤1.47.

In this embodiment, the total optical length TTL of the camera opticallens 10 is smaller than or equal to 7.15 mm, which is beneficial forachieving ultra-thin lenses. As an example, the total optical length TTLof the camera optical lens 10 is smaller than or equal to 6.83 mm.

In this embodiment, an F number of the camera optical lens 10 is smallerthan or equal to 1.96. The camera optical lens 10 has a large apertureand better imaging performance. As an example, the F number of thecamera optical lens 10 is smaller than or equal to 1.92.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, and thus the miniaturizationcharacteristics can be maintained.

When the above conditions are satisfied, the camera optical lens 10 willhave high optical performance while satisfying design requirements forultra-thin, wide-angle lenses having large apertures. With thesecharacteristics, the camera optical lens 10 is especially suitable forhigh-pixel camera optical lens assembly of mobile phones and WEB cameraoptical lenses formed by imaging elements such as CCD and CMOS.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens L1 to the image plane of the camera opticallens along the optic axis) in mm.

F number (FNO): a ratio of an effective focal length of the cameraoptical lens to an entrance pupil diameter of the camera optical lens.

In an example, inflexion points and/or arrest points can be arranged onthe object side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

Table 1 and Table 2 show design data of the camera optical lens 10according to Embodiment 1 of the present disclosure.

TABLE 1 R d nd νd S1 ∞ d0= −0.638 R1 2.002 d1= 0.863 nd1 1.5444 ν1 55.82R2 7.407 d2= 0.062 R3 3.526 d3= 0.250 nd2 1.6700 ν2 19.39 R4 2.385 d4=0.634 R5 16.417 d5= 0.365 nd3 1.5346 ν3 55.69 R6 13.906 d6= 0.192 R7−17.887 d7= 0.841 nd4 1.5661 ν4 37.71 R8 −13.521 d8= 0.104 R9 5.382 d9=0.430 nd5 1.6700 ν5 19.39 R10 17.585 d10= 0.751 R11 4.626 d11= 0.864 nd61.5346 ν6 55.69 R12 1.934 d12= 0.600 R13 ∞ d13= 0.210 ndg 1.5168 νg64.20 R14 ∞ d14= 0.334

In the table, meanings of various symbols will be described as follows.

S1: aperture;

R: curvature radius of an optical surface;

R1: curvature radius of the object side surface of the first lens L1;

R2: curvature radius of the image side surface of the first lens L1;

R3: curvature radius of the object side surface of the second lens L2;

R4: curvature radius of the image side surface of the second lens L2;

R5: curvature radius of the object side surface of the third lens L3;

R6: curvature radius of the image side surface of the third lens L3;

R7: curvature radius of the object side surface of the fourth lens L4;

R8: curvature radius of the image side surface of the fourth lens L4;

R9: curvature radius of the object side surface of the fifth lens L5;

R10: curvature radius of the image side surface of the fifth lens L5;

R11: curvature radius of the object side surface of the sixth lens L6;

R12: curvature radius of the image side surface of the sixth lens L6;

R13: curvature radius of an object side surface of the optical filterGF;

R14: curvature radius of an image side surface of the optical filter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspheric surface data of respective lens in the cameraoptical lens 10 according to Embodiment 1 of the present disclosure.

TABLE 2 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10A12 R1 −7.5750E−01   5.5275E−03 4.8305E−02 −1.2575E−01 1.9501E−01−1.8161E−01 R2 0.0000E+00 −3.9097E−02 −3.6171E−03   1.6776E−01−3.7572E−01   4.4631E−01 R3 0.0000E+00 −5.6885E−02 −2.3294E−02  3.0045E−01 −6.7854E−01   8.6129E−01 R4 0.0000E+00 −3.0807E−029.8378E−02 −2.7096E−01 6.4293E−01 −9.4847E−01 R5 0.0000E+00 −7.0230E−029.6040E−02 −2.9862E−01 5.9513E−01 −7.5026E−01 R6 0.0000E+00 −1.5261E−011.7384E−01 −2.6224E−01 3.0645E−01 −2.4315E−01 R7 0.0000E+00 −1.4955E−011.7918E−01 −2.0493E−01 1.9588E−01 −1.1726E−01 R8 0.0000E+00 −4.5365E−017.6817E−01 −7.8162E−01 5.0917E−01 −2.1504E−01 R9 0.0000E+00 −4.5072E−017.9956E−01 −8.1099E−01 5.1701E−01 −2.1775E−01 R10 0.0000E+00 −1.2677E−012.0359E−01 −1.7162E−01 8.4892E−02 −2.6764E−02 R11 −1.0000E+00 −1.2485E−01 5.0004E−02 −1.3159E−02 8.3370E−04  5.0896E−04 R12−4.9136E+00  −5.6570E−02 2.2037E−02 −6.4310E−03 1.2628E−03 −1.6853E−04Conic coefficient Aspherical surface coefficients k A14 A16 A18 A20 R1−7.5750E−01  1.0486E−01 −3.7013E−02 7.4041E−03 −6.5205E−04 R2 0.0000E+00−3.2007E−01   1.3822E−01 −3.3074E−02   3.3601E−03 R3 0.0000E+00−6.7410E−01   3.2102E−01 −8.5278E−02   9.6758E−03 R4 0.0000E+008.7072E−01 −4.8414E−01 1.4993E−01 −1.9838E−02 R5 0.0000E+00 5.9559E−01−2.8675E−01 7.6370E−02 −8.5948E−03 R6 0.0000E+00 1.3337E−01 −4.8044E−029.9696E−03 −8.8499E−04 R7 0.0000E+00 4.2336E−02 −9.0537E−03 1.0595E−03−5.2359E−05 R8 0.0000E+00 5.8380E−02 −9.8163E−03 9.3072E−04 −3.8131E−05R9 0.0000E+00 6.0681E−02 −1.0780E−02 1.1035E−03 −4.9327E−05 R100.0000E+00 5.4609E−03 −6.9871E−04 5.0877E−05 −1.6029E−06 R11−1.0000E+00  −1.4735E−04   1.7348E−05 −9.8076E−07   2.1932E−08 R12−4.9136E+00  1.5014E−05 −8.4274E−07 2.6605E−08 −3.5675E−10

In Table 2, k is a conic coefficient, and A4, A6, A8, A10, A12, A14,A16, A18 and A20 are aspheric surface coefficients.

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶ +A18x ¹⁸ +A20x ²⁰  (1)

where x is a vertical distance between a point on an aspherical curveand the optic axis, and y is an aspherical depth (a vertical distancebetween a point on an aspherical surface, having a distance of x fromthe optic axis, and a surface tangent to a vertex of the asphericalsurface on the optic axis).

In the present embodiment, an aspheric surface of each lens surface usesthe aspheric surfaces shown in the above condition (1). However, thepresent disclosure is not limited to the aspherical polynomial formshown in the condition (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,respectively; P2R1 and P2R2 represent the object side surface and theimage side surface of the second lens L2, respectively; P3R1 and P3R2represent the object side surface and the image side surface of thethird lens L3, respectively; P4R1 and P4R2 represent the object sidesurface and the image side surface of the fourth lens L4, respectively;P5R1 and P5R2 represent the object side surface and the image sidesurface of the fifth lens L5, respectively; and P6R1 and P6R2 representthe object side surface and the image side surface of the sixth lens L6,respectively. The data in the column “inflexion point position” refersto vertical distances from inflexion points arranged on each lenssurface to the optic axis of the camera optical lens 10. The data in thecolumn “arrest point position” refers to vertical distances from arrestpoints arranged on each lens surface to the optic axis of the cameraoptical lens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion Inflexion Inflexioninflexion point point point point point points position 1 position 2position 3 position 4 position 5 P1R1 0 \ \ \ \ \ P1R2 1 1.245 \ \ \ \P2R1 1 1.275 \ \ \ \ P2R2 0 \ \ \ \ \ P3R1 2 0.305 1.205 \ \ \ P3R2 20.215 1.155 \ \ \ P4R1 2 0.985 1.795 \ \ \ P4R2 2 1.655 1.915 \ \ \ P5R15 0.205 0.755 0.925 2.015 2.085 P5R2 4 0.215 0.705 0.975 2.325 \ P6R1 40.415 2.025 2.425 2.735 \ P6R2 2 0.805 3.655 \ \ \

TABLE 4 Number of arrest points Arrest point position 1 P1R1 0 \ P1R2 0\ P2R1 0 \ P2R2 0 \ P3R1 1 0.525 P3R2 1 0.385 P4R1 1 1.455 P4R2 0 \ P5R11 0.395 P5R2 1 0.415 P6R1 1 0.785 P6R2 1 1.885

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 555 nm and 470 nm afterpassing the camera optical lens 10 according to Embodiment 1. FIG. 4illustrates a field curvature and a distortion of light with awavelength of 555 nm after passing the camera optical lens 10 accordingto Embodiment 1, in which a field curvature S is a field curvature in asagittal direction and T is a field curvature in a tangential direction.

Table 13 below further lists various values of Embodiments 1, 2 and 3and values corresponding to parameters which are specified in the aboveconditions.

As shown in Table 13, Embodiment 1 satisfies the respective conditions.

In this embodiment, the entrance pupil diameter (ENPD) of the cameraoptical lens is 2.950 mm. The image height of 1.0H is 4.595 mm. The FOV(field of view) along a diagonal direction is 78.93°. Thus, the cameraoptical lens can provide an ultra-thin, wide-angle lens while havingon-axis and off-axis aberrations sufficiently corrected, thereby leadingto better optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1. Only differences therebetweenwill be described in the following.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd νd S1 ∞ d0= −0.546 R1 1.975 d1= 0.836 nd1 1.5444 ν1 55.82R2 7.391 d2= 0.102 R3 5.115 d3= 0.250 nd2 1.6700 ν2 19.39 R4 3.186 d4=0.611 R5 35.464 d5= 0.342 nd3 1.5835 ν3 30.27 R6 23.458 d6= 0.340 R7−10.546 d7= 0.705 nd4 1.5661 ν4 37.71 R8 −10.386 d8= 0.080 R9 5.342 d9=0.494 nd5 1.6700 ν5 19.39 R10 10.510 d10= 0.648 R11 3.261 d11= 0.900 nd61.5346 ν6 55.69 R12 1.778 d12= 0.600 R13 ∞ d13= 0.210 ndg 1.5168 νg64.20 R14 ∞ d14= 0.379

Table 6 shows aspheric surface data of respective lenses in the cameraoptical lens 20 according to Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 A10A12 R1 −8.0273E−01   6.2272E−03 4.9519E−02 −1.2861E−01 1.9606E−01−1.8144E−01 R2 0.0000E+00 −5.3088E−02 6.1537E−02 −8.4768E−02 1.0991E−01−1.0064E−01 R3 0.0000E+00 −6.3894E−02 2.4318E−02  1.3018E−01−3.1584E−01   4.2198E−01 R4 0.0000E+00 −3.5054E−02 1.1782E−01−2.9550E−01 6.7895E−01 −9.6764E−01 R5 0.0000E+00 −9.6992E−02 1.0686E−01−3.0635E−01 5.9211E−01 −7.4934E−01 R6 0.0000E+00 −1.0356E−01 1.2527E−03 1.4749E−01 −3.2985E−01   3.8615E−01 R7 0.0000E+00 −1.1298E−017.4742E−02 −2.9097E−02 2.0174E−02 −1.4349E−02 R8 0.0000E+00 −3.9197E−015.5737E−01 −4.9712E−01 2.9737E−01 −1.1744E−01 R9 0.0000E+00 −3.1545E−014.8788E−01 −4.4655E−01 2.5991E−01 −1.0017E−01 R10 0.0000E+00 −5.8325E−028.0208E−02 −6.3584E−02 2.9028E−02 −8.3331E−03 R11 −1.0000E+00 −1.3075E−01 5.6906E−02 −2.0200E−02 4.8788E−03 −7.4415E−04 R12−5.2855E+00  −4.4619E−02 1.5464E−02 −4.2819E−03 8.1072E−04 −1.0511E−04Conic coefficient Aspherical surface coefficients k A14 A16 A18 A20 R1−8.0273E−01  1.0452E−01 −3.6998E−02 7.4317E−03 −6.6315E−04 R2 0.0000E+005.6808E−02 −1.8552E−02 3.0991E−03 −1.9574E−04 R3 0.0000E+00 −3.5571E−01  1.8467E−01 −5.3339E−02   6.5207E−03 R4 0.0000E+00 8.6145E−01−4.7354E−01 1.5060E−01 −2.1381E−02 R5 0.0000E+00 5.9623E−01 −2.8630E−017.6150E−02 −8.6546E−03 R6 0.0000E+00 −2.7018E−01   1.1367E−01−2.6443E−02   2.6032E−03 R7 0.0000E+00 6.2169E−03 −1.5252E−03 1.9566E−04−1.0121E−05 R8 0.0000E+00 2.9916E−02 −4.6972E−03 4.1114E−04 −1.5272E−05R9 0.0000E+00 2.5470E−02 −4.1102E−03 3.8092E−04 −1.5398E−05 R100.0000E+00 1.5286E−03 −1.7383E−04 1.1145E−05 −3.0713E−07 R11−1.0000E+00  7.0810E−05 −4.0915E−06 1.3173E−07 −1.8173E−09 R12−5.2855E+00  9.1241E−06 −4.9915E−07 1.5377E−08 −2.0206E−10

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 1.365 \ \ P1R21 0.915 \ \ P2R1 0 \ \ \ P2R2 0 \ \ \ P3R1 1 0.165 \ \ P3R2 1 0.195 \ \P4R1 1 1.075 \ \ P4R2 3 1.195 1.945 2.115 P5R1 3 0.255 0.825 0.935 P5R23 0.995 2.575 2.685 P6R1 3 0.515 2.055 3.505 P6R2 1 0.825 \ \

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 \ \ P1R2 1 1.285 \ P2R1 0 \ \ P2R2 0 \ \ P3R1 1 0.285\ P3R2 1 0.325 \ P4R1 1 1.735 \ P4R2 0 \ \ P5R1 1 0.525 \ P5R2 1 1.365 \P6R1 2 1.015 3.335 P6R2 1 1.975 \

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 555 nm and 470 nm afterpassing the camera optical lens 20 according to Embodiment 2. FIG. 8illustrates a field curvature and a distortion of light with awavelength of 555 nm after passing the camera optical lens 20 accordingto Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the respective conditions.

In this embodiment, the entrance pupil diameter (ENPD) of the cameraoptical lens is 2.875 mm. The image height of 1.0H is 4.595 mm. The FOV(field of view) along a diagonal direction is 78.82°. Thus, the cameraoptical lens can provide an ultra-thin, wide-angle lens while havingon-axis and off-axis aberrations sufficiently corrected, thereby leadingto better optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1. Only differences therebetweenwill be described in the following.

The object side surface of the fifth lens L5 is concave in a paraxialregion and the image side surface of the fifth lens L5 is convex in theparaxial region.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd νd S1 ∞ d0= −0.567 R1 1.957 d1= 0.865 nd1 1.5444 ν1 55.82R2 8.065 d2= 0.104 R3 5.201 d3= 0.250 nd2 1.6700 ν2 19.39 R4 3.090 d4=0.479 R5 19.698 d5= 0.400 nd3 1.5844 ν3 28.22 R6 15.817 d6= 0.175 R7−30.289 d7= 0.400 nd4 1.6400 ν4 23.54 R8 −24.750 d8= 0.288 R9 −13.575d9= 0.733 nd5 1.5444 ν5 55.82 R10 −4.175 d10= 0.583 R11 4.213 d11= 0.972nd6 1.5346 ν6 55.69 R12 1.772 d12= 0.600 R13 ∞ d13= 0.210 ndg 1.5168 νg64.20 R14 ∞ d14= 0.407

Table 10 shows aspheric surface data of respective lenses in the cameraoptical lens 30 according to Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8A10 A12 R1 −8.0105E−01   5.7482E−03 5.0583E−02 −1.2894E−01 1.9601E−01−1.8124E−01 R2 0.0000E+00 −7.3446E−02 1.6349E−01 −3.4331E−01 5.3155E−01−5.4567E−01 R3 0.0000E+00 −1.0155E−01 2.0769E−01 −4.1227E−01 7.2040E−01−8.5420E−01 R4 0.0000E+00 −4.4854E−02 1.2758E−01 −2.9949E−01 6.7675E−01−9.6576E−01 R5 0.0000E+00 −7.5054E−02 1.0697E−01 −3.0844E−01 5.9165E−01−7.4676E−01 R6 0.0000E+00 −1.1282E−01 1.0402E−01 −2.1232E−01 2.8551E−01−2.3325E−01 R7 0.0000E+00 −1.2125E−01 9.0208E−02 −1.4030E−01 1.7673E−01−1.3677E−01 R8 0.0000E+00 −9.2959E−02 1.0287E−01 −1.3355E−01 1.2881E−01−7.7258E−02 R9 0.0000E+00 −5.2059E−02 7.9568E−02 −8.3516E−02 5.4669E−02−2.5141E−02 R10 0.0000E+00 −6.1135E−02 8.0012E−02 −5.4296E−02 2.4305E−02−8.1015E−03 R11 −1.0000E+00  −1.5022E−01 7.7525E−02 −2.9543E−027.5608E−03 −1.2495E−03 R12 −6.2811E+00  −3.8449E−02 1.3409E−02−3.3995E−03 5.7829E−04 −6.6973E−05 Conic coefficient Aspherical surfacecoefficients k A14 A16 A18 A20 R1 −8.0105E−01  1.0447E−01 −3.7004E−027.4477E−03 −6.6532E−04 R2 0.0000E+00 3.5764E−01 −1.4373E−01 3.2231E−02−3.0948E−03 R3 0.0000E+00 6.4553E−01 −2.9725E−01 7.6127E−02 −8.3400E−03R4 0.0000E+00 8.6146E−01 −4.7159E−01 1.4864E−01 −2.0862E−02 R50.0000E+00 5.9704E−01 −2.8707E−01 7.5823E−02 −8.3443E−03 R6 0.0000E+001.0959E−01 −2.0563E−02 −2.4578E−03   1.0832E−03 R7 0.0000E+00 7.5523E−02−2.8868E−02 6.4296E−03 −6.0803E−04 R8 0.0000E+00 2.9614E−02 −7.1836E−031.0037E−03 −6.1232E−05 R9 0.0000E+00 8.1974E−03 −1.7472E−03 2.1270E−04−1.1072E−05 R10 0.0000E+00 2.0109E−03 −3.3640E−04 3.2544E−05 −1.3477E−06R11 −1.0000E+00  1.3164E−04 −8.5497E−06 3.1226E−07 −4.9123E−09 R12−6.2811E+00  5.2104E−06 −2.6015E−07 7.5083E−09 −9.4800E−11

Table 11 and Table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion point Inflexion point Inflexion pointinflexion points position 1 position 2 position 3 P1R1 1 1.405 \ \ P1R21 1.065 \ \ P2R1 0 \ \ \ P2R2 0 \ \ \ P3R1 2 0.265 1.115 \ P3R2 2 0.2351.135 \ P4R1 2 1.075 1.425 \ P4R2 2 1.145 1.585 \ P5R1 2 1.655 2.045 \P5R2 2 1.935 2.365 \ P6R1 2 0.405 2.045 \ P6R2 3 0.835 3.775 3.935

TABLE 12 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 \ \ P1R2 1 1.335 \ P2R1 0 \ \ P2R2 0 \ \ P3R1 1 0.465\ P3R2 1 0.405 \ P4R1 0 \ \ P4R2 0 \ \ P5R1 0 \ \ P5R2 0 \ \ P6R1 20.775 3.195 P6R2 1 2.195 \

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 650 nm, 555 nm and 470 nm afterpassing the camera optical lens 30 according to Embodiment 3. FIG. 12illustrates field curvature and distortion of light with a wavelength of555 nm after passing the camera optical lens 30 according to Embodiment3.

Table 13 below further lists various values of the present embodimentand values corresponding to parameters which are specified in the aboveconditions. Obviously, the camera optical lens according to thisembodiment satisfies the above conditions.

In this embodiment, the entrance pupil diameter (ENPD) of the cameraoptical lens is 2.885 mm. The image height of 1.0H is 4.595 mm. The FOV(field of view) along a diagonal direction is 78.61°. Thus, the cameraoptical lens can provide an ultra-thin, wide-angle lens while havingon-axis and off-axis aberrations sufficiently corrected, thereby leadingto better optical characteristics.

TABLE 13 Parameters and Conditions Embodiment 1 Embodiment 2 Embodiment3 (v2 + v4)/v3 1.03 1.89 1.52 f3/f2 14.95 9.05 12.00 f4/f5 8.05 29.9519.00 f 5.462 5.460 5.475 f1 4.754 4.681 4.506 f2 −11.948 −13.183−11.829 f3 −178.629 −119.309 −141.948 f4 91.028 463.263 204.098 f511.308 15.468 10.742 f6 −6.977 −9.253 −6.621 f12 6.694 6.348 6.259 FNO1.851 1.899 1.898 TTL 6.501 6.497 6.467 FOV 78.93 78.82 78.61 IH 4.5954.595 4.595

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, sequentially comprising,from an object side to an image side: a first lens having a positiverefractive power; a second lens having a negative refractive power; athird lens having a negative refractive power; a fourth lens having apositive refractive power; a fifth lens having a positive refractivepower; and a sixth lens having a negative refractive power, wherein thecamera optical lens satisfies following conditions:1.00≤(v2+v4)/v3≤1.90;9.00≤f3/f2≤15.00; and8.00≤f4/f5≤30.00, where v2 denotes an abbe number of the second lens; v3denotes an abbe number of the third lens; v4 denotes an abbe number ofthe fourth lens; f2 denotes a focal length of the second lens; f3denotes a focal length of the third lens; f4 denotes a focal length ofthe fourth lens; and f5 denotes a focal length of the fifth lens.
 2. Thecamera optical lens as described in claim 1, wherein the first lenscomprises an object side surface being convex in a paraxial region andan image side surface being concave in the paraxial region, and thecamera optical lens satisfies following conditions:0.40≤f1/f≤1.31;−3.48≤(R1+R2)/(R1−R2)≤−1.09; and0.06≤d1/TTL≤0.22, where f denotes a focal length of the camera opticallens; f1 denotes a focal length of the first lens; R1 denotes acurvature radius of the object side surface of the first lens; R2denotes a curvature radius of the image side surface of the first lens;d1 denotes an on-axis thickness of the first lens; and TTL denotes atotal optical length from the object side surface of the first lens toan image plane of the camera optical lens along an optic axis.
 3. Thecamera optical lens as described in claim 2, further satisfyingfollowing conditions:0.64≤f1/f≤1.04;−2.18≤(R1+R2)/(R1−R2)≤−1.37; and0.10≤d1/TTL≤0.18.
 4. The camera optical lens as described in claim 1,wherein the second lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens satisfies followingconditions:−4.83≤f2/f≤−1.31;1.00≤(R3+R4)/(R3−R4)≤7.77; and0.02≤d3/TTL≤0.07, where f denotes a focal length of the camera opticallens; R3 denotes a curvature radius of the object side surface of thesecond lens; R4 denotes a curvature radius of the image side surface ofthe second lens; d3 denotes an on-axis thickness of the second lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 5. The camera optical lens as described in claim 4, furthersatisfying following conditions:−3.02≤f2/f≤−1.64;1.60≤(R3+R4)/(R3−R4)≤6.21; and0.03≤d3/TTL≤0.06.
 6. The camera optical lens as described in claim 1,wherein the third lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens satisfies followingconditions:−65.41≤f3/f≤−14.57;2.45≤(R5+R6)/(R5−R6)≤18.12; and0.03≤d5/TTL≤0.10, where f denotes a focal length of the camera opticallens; R5 denotes a curvature radius of the object side surface of thethird lens; R6 denotes a curvature radius of the image side surface ofthe third lens; d5 denotes an on-axis thickness of the third lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 7. The camera optical lens as described in claim 6, furthersatisfying following conditions:−40.88≤f3/f≤−18.21;3.93≤(R5+R6)/(R5−R6)≤14.50; and0.04≤d5/TTL≤0.08.
 8. The camera optical lens as described in claim 1,further satisfying following conditions:7.68≤f4/f≤127.28;−25.76≤(R7+R8)/(R7−R8)≤196.39; and0.03≤d7/TTL≤0.19, where f denotes a focal length of the camera opticallens; R7 denotes a curvature radius of an object side surface of thefourth lens; R8 denotes a curvature radius of an image side surface ofthe fourth lens; d7 denotes an on-axis thickness of the fourth lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 9. The camera optical lens as described in claim 8, furthersatisfying following conditions:12.29≤f4/f≤101.82;−16.10≤(R7+R8)/(R7−R8)≤157.11; and0.04≤d7/TTL≤0.16.
 10. The camera optical lens as described in claim 1,further satisfying following conditions:0.47≤f5/f≤4.25;−6.13≤(R9+R10)/(R9−R10)≤2.83; and0.03≤d9/TTL≤0.17, where f denotes a focal length of the camera opticallens; R9 denotes a curvature radius of an object side surface of thefifth lens; R10 denotes a curvature radius of an image side surface ofthe fifth lens; d9 denotes an on-axis thickness of the fifth lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 11. The camera optical lens as described in claim 10, furthersatisfying following conditions:0.76≤f5/f≤3.40;−3.83≤(R9+R10)/(R9−R10)≤2.27; and0.05≤d9/TTL≤0.14.
 12. The camera optical lens as described in claim 1,wherein an image side surface of the sixth lens is concave in a paraxialregion, and the camera optical lens satisfies following conditions:−3.39≤f6/f≤−0.40;0.10≤(R11+R12)/(R11−R12)≤5.10; and0.04≤d11/TTL≤0.23, where f denotes a focal length of the camera opticallens; f6 denotes a focal length of the sixth lens; R11 denotes acurvature radius of an object side surface of the sixth lens; R12denotes a curvature radius of the image side surface of the sixth lens;d11 denotes an on-axis thickness of the sixth lens; and TTL denotes atotal optical length from an object side surface of the first lens to animage plane of the camera optical lens along an optic axis.
 13. Thecamera optical lens as described in claim 12, further satisfyingfollowing conditions:−2.12≤f6/f≤−0.50;0.16≤(R11+R12)/(R11−R12)≤4.08; and0.07≤d11/TTL≤0.18.
 14. The camera optical lens as described in claim 1,further satisfying a following condition:0.57≤f12/f≤1.84, where f denotes a focal length of the camera opticallens; and f12 denotes a combined focal length of the first lens and thesecond lens.
 15. The camera optical lens as described in claim 14,further satisfying a following condition:0.91≤f12/f≤1.47.
 16. The camera optical lens as described in claim 1,wherein a total optical length TTL from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis is smaller than or equal to 7.15 mm.
 17. The camera optical lens asdescribed in claim 16, wherein the total optical length TTL is smallerthan or equal to 6.83 mm.
 18. The camera optical lens as described inclaim 1, wherein an F number of the camera optical lens is smaller thanor equal to 1.96.
 19. The camera optical lens as described in claim 18,wherein the F number of the camera optical lens is smaller than or equalto 1.92.